Device ik stave machinery



UNTTED sTATEs PATENT oEEicE.

CHARLES HOYT, OF WEST AURORA, ILLINOIS.

DEVICE IN STAVE MACHINERY.

Specification of Letters Patent N0. 15,423, dated July i29, 1856.

To all fwhom it may concern:

Be it known that I, CHARLES HoY'r, of lVest Aurora, in the county ofKane and State of Illinois, have invented a new and useful Improvementin Machines for Dressing and J ointing Staves for Barrels, Casks, &c.;and I do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of t-his specification, in which- Figure 1, is alongit-udinal vertical section of my improvement, Fig. 3, showing theplane of section. Fig. 2, is a t-ransverse vertical section of ditto, y,y, Fig. 3 showing the plane of section. Fig. 3, is a plan or top view ofditto.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to a new and improved device for jointing thestaves and giving them the proper shape or swell.

To enable those skilled in the art to fully understand and construct myinvention, I

Iwill proceed to describe it.

A, represents a rectangular frame, to the lower part of which and at oneend, a lever B, is pivoted, said lever being connected by a cord a, to asliding bed or plate C, which is tted on the upper part of the frame A,and has spiral springs Z9, b, bearing against it as shown in Fig. 3.

D, is a center strip placed longitudinally on the frame A, and fitted ina groove or recess at the center of the bed or plate O. The strip D, isstationary and is grooved longitudinally and has a feeding block orslide E, fitted within it, said block or slide being connected by a rodc, with the upper end of a bent or right-angled lever F, which ispivoted to an arm el, on a cross piece of the frame A, see Fig. l. Aspiral spring e,

bears against the feeding block or slide as shown in Figs. l and 3.

Gr, G, are plates placed on the bed or plate C, one at each side of thestrip D. These plates have oblique slots f, made in them, two in eachand pins g, which are attached to the bed or plate c, fit in the slotsf, see Fig. 3.

H, H, are two feed rollers which are placed one above and the otherbelow the center strip D, as shown clearly in Fig. 1.

I, I, are two aws which work upon pivots g', g, attached to frames J, J,which are allowed to slide or work laterally in the frame A. One end ofthe frames J, are connected to levers It, L, which work on a pin or boltz', in the underside of the strip D, see dotted lines, Fig. 3, the pinor bolt being allowed to work in a slot in the under side 0f the centerstrip.

K, K, represent two wedges Lwhich are connected at their lower ends.These wedges are in a `vertical position and pass upward against one endor side of the frames J, J; a spring z, passes through the lower part ofthe wedges and a rod j, passes through the end of the spring, said rodhaving a knob or cross head on its upper end. The lower end of the rodj, is attached to a reciprocating block L, which has rods 7c, 7c,attached to it, said rods working through guides Z, as shown in Fig. 2.The block L, is connected by a pitman m, to a strap n, which is fittedaround an eccentric o, on a shaft M. This eccentric has a pin p, on oneof its sides, said pin acting against the lever F, as will be hereafterdescribed. To the upper end of the block L, two bars N, N, are pivotedsaid having two vertical wedgedshaped bars p, p, at each end. Twosimilar bars O, O, are also pivoted to the block L; the outer ends ofsaid bars having vertical bars g, g, attached to them, on which shaftsor arbors 1', r, are placed, said shafts or arbors having cutter headss, s, on their upper ends. The upper ends of the shafts or arbors r, r,have their bearings in horizontal plates t, t, which are attached to theupper ends of the bars g, g, said plates working within the frames J, J.

P, P, are springs which bear against the under sides of the bars O, O.

Q, Q, are weights which are attached to the ends of the two jaws I, I.

R, R, are two cylinders provided with cutters for dressing the inner andouter sides of the staves and S, S, are two discharging rollers, which,as well as the cylinders R, are placed one above and the other below thestrip D.,

The operation is as follows: The staves T, shown in red, are got out ofthe proper size and are placed one at a time upon the strip D, and thelever B, being depressed, the two plates G, G, are moved laterallyinward and adjust the stave T, precisely in line with the feed rollersH, H. The pin @on the eccentric 0, acts against the lower part of ciselyat the proper time, between the feed rollers I-I, H, and between the twojaws I, I, the stave expanding the jaws and causing the two frames J, J,and cutter heads s, s, to move a little outward at equal distances fromthe strip D. The cutters on the heads s, s, then act upon the end of thestave, one at each side, the frames J, J, and heads s, being heldpermanently by the wedgeshaped bars K, which are moved upward at thistime, the heads being nearest together at this point, that is, whenacting upon the stave. As the stave is moved along, the wedge-shapedbars p', p, are moved upward by the eccentric o, and the bars g, Q, andcutter heads s, s, are gradually thrown outward or expanded, ltill thecenter of the stave reaches the point precisely between the two heads;the heads s, s, are then thrown gradually inward by the springs P, forthe wedge shaped bars p, begin to descend till the stave has entirelypassed through between the heads, the stave then passes between thedressing cylinders R, R, and is discharged from the machine by therollers S, S, the stave being cut with the swell or proper taper, asshown in Fig. 3. The heads s, s, it will be seen, expand in a circulardirection, because the inner ends of the bars O, O, are pvoted to theblock L, as previously shown and the edges or sides of the stave T, willconsequently always be cut with the same level, however much or littlethey may be expanded, and this level always forms a radius line from thecenter of a circle, of which the pivot of the bars O, O, is the center.The staves, therefore will be perfectly jointed and in an expeditiousmanner.

I do not claim the cylinders R, R, for dressing the stave, for they havebeen previously used, but

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1.V I claim adjusting the staves T, in line with the feed rollers H, H,and jaws I, I, by means of the sliding bed or plate C, and laterallysliding plates G, G, arranged as shown and described.

2. I claim the feeding block E, when operated by the spring e, lever F,and eccentric 0, substantially as shown, for the purpose of feeding thestaves to the cutters.

CHARLES HOYT.

Witnesses:

J. D. DUNNING, C. PENNEY, 2d.

